Home / 80,969.78-121,458.32-24,805.81

Finding the Fourth Proportional to 80,969.78, 121,458.32 and 24,805.81

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Solution

The fourth proportional to 80,969.78, 121,458.32 and 24,805.81 is: 37,209.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,969.78 : 121,458.32 = 24,805.81 : x
  2. Step 2: Convert to fraction form
    80,969.78/121,458.32 = 24,805.81/x
  3. Step 3: Cross multiply
    80,969.78x = 121,458.32 × 24,805.81
  4. Step 4: Simplify right side
    80,969.78x = 3,012,872,008.84
  5. Step 5: Solve for x
    x = 3,012,872,008.84/80,969.78
  6. Step 6: Final answer
    x = 37,209.83

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.